diff --git a/cppzmq/Makefile b/cppzmq/Makefile
index 59c6b2f41f..dddeb4f9fd 100644
--- a/cppzmq/Makefile
+++ b/cppzmq/Makefile
@@ -6,7 +6,7 @@ MASTER_SITES=	${MASTER_SITE_GITHUB:=zeromq/}
 GITHUB_TAG=	v${PKGVERSION_NOREV}
 
 MAINTAINER=	root@zta.lk
-HOMEPAGE=	https://www.zeromq.org
+HOMEPAGE=	https://www.zeromq.org/
 COMMENT=	C++ binding for libzmq
 LICENSE=	mit
 
diff --git a/cppzmq/buildlink3.mk b/cppzmq/buildlink3.mk
index e4cb9772f6..08c4548e4d 100644
--- a/cppzmq/buildlink3.mk
+++ b/cppzmq/buildlink3.mk
@@ -1,14 +1,4 @@
 # $NetBSD$
-# XXX
-# XXX This file was created automatically using createbuildlink-3.17.
-# XXX After this file has been verified as correct, the comment lines
-# XXX beginning with "XXX" should be removed.  Please do not commit
-# XXX unverified buildlink3.mk files.
-# XXX
-# XXX Packages that only install static libraries or headers should
-# XXX include the following line:
-# XXX
-# XXX	BUILDLINK_DEPMETHOD.cppzmq?=	build
 
 BUILDLINK_TREE+=	cppzmq
 
@@ -17,14 +7,9 @@ CPPZMQ_BUILDLINK3_MK:=
 
 BUILDLINK_API_DEPENDS.cppzmq+=	cppzmq>=4.6.0
 BUILDLINK_PKGSRCDIR.cppzmq?=	../../wip/cppzmq
+BUILDLINK_DEPMETHOD.cppzmq?=	build
 
-# XXX
-# XXX Uncomment and keep only the buildlink3 lines below which are directly
-# XXX needed for dependencies to compile, link, and run.  If this package
-# XXX provides a wrappered API or otherwise does not expose the APIs of the
-# XXX buildlink3 lines below to dependencies, remove them.
-# XXX
-#.include "../../net/zeromq/buildlink3.mk"
+.include "../../net/zeromq/buildlink3.mk"
 .endif	# CPPZMQ_BUILDLINK3_MK
 
 BUILDLINK_TREE+=	-cppzmq
diff --git a/libopenshot/Makefile b/libopenshot/Makefile
index 051b9f32b5..f9dde7dba3 100644
--- a/libopenshot/Makefile
+++ b/libopenshot/Makefile
@@ -14,10 +14,11 @@ WRKSRC=		${WRKDIR}/libopenshot-0.2.5
 USE_CMAKE=	yes
 USE_LANGUAGES=	c c++
 
+PYTHON_VERSIONS_INCOMPATIBLE=	27
+
 DEPENDS+=	swig4>=4.0.0:../../wip/swig4
 
 .include "../../multimedia/ffmpeg4/buildlink3.mk"
-.include "../../net/zeromq/buildlink3.mk"
 .include "../../wip/cppzmq/buildlink3.mk"
 .include "../../wip/libopenshot-audio/buildlink3.mk"
 .include "../../graphics/librsvg/buildlink3.mk"
@@ -25,7 +26,6 @@ DEPENDS+=	swig4>=4.0.0:../../wip/swig4
 .include "../../x11/qt5-qtmultimedia/buildlink3.mk"
 .include "../../devel/unittest-cpp/buildlink3.mk"
 
-#.include "../../lang/python/pyversion.mk"
-.include "../../lang/python37/buildlink3.mk"
+.include "../../lang/python/pyversion.mk"
 .include "../../lang/ruby/buildlink3.mk"
 .include "../../mk/bsd.pkg.mk"